EP2849225A3 - System and method for providing a redistribution metal layer in an integrated circuit - Google Patents

System and method for providing a redistribution metal layer in an integrated circuit Download PDF

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Publication number
EP2849225A3
EP2849225A3 EP14191744.3A EP14191744A EP2849225A3 EP 2849225 A3 EP2849225 A3 EP 2849225A3 EP 14191744 A EP14191744 A EP 14191744A EP 2849225 A3 EP2849225 A3 EP 2849225A3
Authority
EP
European Patent Office
Prior art keywords
metal layer
integrated circuit
providing
passivation layer
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14191744.3A
Other languages
German (de)
French (fr)
Other versions
EP2849225A2 (en
Inventor
Danielle A Thomas
Harry Michael Siegel
Antonio A Do Bento Vieira
Anthony M Chiu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics lnc USA
Original Assignee
STMicroelectronics lnc USA
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Filing date
Publication date
Application filed by STMicroelectronics lnc USA filed Critical STMicroelectronics lnc USA
Publication of EP2849225A2 publication Critical patent/EP2849225A2/en
Publication of EP2849225A3 publication Critical patent/EP2849225A3/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
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    • H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L24/10—Bump connectors ; Manufacturing methods related thereto
    • H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L24/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
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    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
    • H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
    • H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
    • H01L23/3114—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed the device being a chip scale package, e.g. CSP
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    • H01L2224/02—Bonding areas; Manufacturing methods related thereto
    • H01L2224/023—Redistribution layers [RDL] for bonding areas
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    • H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
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    • H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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    • H01L24/02—Bonding areas ; Manufacturing methods related thereto
    • H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
    • H01L24/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
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    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
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    • H01L2924/14—Integrated circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49144—Assembling to base an electrical component, e.g., capacitor, etc. by metal fusion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
    • Y10T29/49146—Assembling to base an electrical component, e.g., capacitor, etc. with encapsulating, e.g., potting, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/49155—Manufacturing circuit on or in base

Abstract

A method for fabricating an integrated circuit comprising: fabricating a first portion of an active circuit area and an associated metal pad on a base substrate; depositing a passivation layer above the first portion of the active circuit area and above the metal pad, wherein at least portions of an upper surface of the passivation layer is nonplanar; etching at least one via through the passivation layer to the metal pad; etching a metal layer pattern into the passivation layer; and depositing a metal layer onto the metal layer pattern in the passivation layer to form a redistribution metal layer
EP14191744.3A 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit Withdrawn EP2849225A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/091,743 US7096581B2 (en) 2002-03-06 2002-03-06 Method for providing a redistribution metal layer in an integrated circuit
EP03251346.7A EP1351294B1 (en) 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03251346.7A Division EP1351294B1 (en) 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit

Publications (2)

Publication Number Publication Date
EP2849225A2 EP2849225A2 (en) 2015-03-18
EP2849225A3 true EP2849225A3 (en) 2015-04-01

Family

ID=27787738

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14191744.3A Withdrawn EP2849225A3 (en) 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit
EP03251346.7A Expired - Lifetime EP1351294B1 (en) 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03251346.7A Expired - Lifetime EP1351294B1 (en) 2002-03-06 2003-03-06 System and method for providing a redistribution metal layer in an integrated circuit

Country Status (3)

Country Link
US (3) US7096581B2 (en)
EP (2) EP2849225A3 (en)
JP (1) JP4401089B2 (en)

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EP1351294B1 (en) 2014-11-05
US7096581B2 (en) 2006-08-29
US7786582B2 (en) 2010-08-31
EP1351294A3 (en) 2006-09-27
US20060234423A1 (en) 2006-10-19
JP4401089B2 (en) 2010-01-20
JP2004031912A (en) 2004-01-29
US20030167632A1 (en) 2003-09-11
US8163645B2 (en) 2012-04-24
US20100297841A1 (en) 2010-11-25
EP2849225A2 (en) 2015-03-18
EP1351294A2 (en) 2003-10-08

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